OpticalLimits

Next OL Lens Test report: Sigma 90mm f/2.8 DG DN Contemporary

me

https://opticallimits.com/sony/sony-fe-full-format/sigma-90mm-f-2-8-dg-dn-contemporary-review/

Slow but nice.

Rover

Triple 2.8: aperture, vignetting wide open, pincushion distortion. 🙂

Anyway it's nice to see the reviews of these lenses even though I'm not really in the target group; Sigma has made a lot of them in very quick succession I think? (17/4; 20/2; 24/2; 24/3.5; 35/2; 45/2.8; 50/2; 65/2; and this 90/2.8... have I missed anything?)

Maybe if I manage to leave the journalistic trade behind, I'll get some of these and shoot on vacations. 🙂

stoppingdown

When comparing with the Samyang 75mm F1.8: «However, you can expect it to be more flimsy in terms of build quality» — yep, I can confirm that. I'm pretty happy to have it, but you trade the extra stop and low price with the build quality.

me

Rover wrote
Triple 2.8: aperture, vignetting wide open, pincushion distortion. 🙂

Anyway it's nice to see the reviews of these lenses even though I'm not really in the target group; Sigma has made a lot of them in very quick succession I think? (17/4; 20/2; 24/2; 24/3.5; 35/2; 45/2.8; 50/2; 65/2; and this 90/2.8... have I missed anything?)

Maybe if I manage to leave the journalistic trade behind, I'll get some of these and shoot on vacations. 🙂

The 17/4 review is coming soon.

The 65 is still my favorite.

Question - do you also see 3D pop in this image?

https://photozone.smugmug.com/Sigma-90mm-f28-DG-DN-Contemporary/i-pPntZ7f/A

Rover

LOL, I think it's one of those nebulous terms people use arbitrarily and subjectively to describe things (e.g. lenses...) they like as opposed to those they don't. 😃

I think the image is nice; the background looks iffy in spots at 100% but this is inevitable because most any lens may be made to look bad when shooting images with lots of foliage and twigs in the OOF areas. But I usually don't give a rat's ass about these things anyway. 🙂

me

I don't think that 3D pop is hokum - because it can be measured. It won't show up in our numbers here, though.
We "just" measure the peak resolution (and a bit of contrast), but this doesn't reflect how objects "stand out".

Watch this snippet from a Leica explanation:
https://www.youtube.com/watch?v=_vyoAIOTIcs
Time index: 29:10 to 32:10

I'd guess you can sometimes - although not always - take a hint from our LoCA tests.
The "problem" with the LoCA test is that this contrast transition is polluted by the rather close focus distance.

toni-a

Klaus pid='58123' dateline='1715598077']
Question - do you also see 3D pop in this image?

https://photozone.smugmug.com/Sigma-90mm-f28-DG-DN-Contemporary/i-pPntZ7f/A[/quote]

3D pop is hard to define, however I am somewhat not really happy with post processing. while I do shoot to the right, while converting to RAW I then correct exposure, here it still looks overexposed.
White balance is rather on the cold side warmer colors, I would also correct the grass greens. and obviously decrease saturation, for composition I would suggest cropping behind the old car as the details are distracting

MLonlooker

Not a lot to criticize there, although I would prefer that extra stop at 1.8 for portraits really ...
btw text quotes 2.8 as the vignetting figure where the graph shows 2.44 ....
thanks ....

Rover

I think the focus here (pun not intended) was on compactness... it's much smaller than any AF 85/1.8 I think? Though not lighter due to the metal husk.

MLonlooker

Klaus wrote

Question - do you also see 3D pop in this image?

https://photozone.smugmug.com/Sigma-90mm-f28-DG-DN-Contemporary/i-pPntZ7f/A

Nice image! ...... 3D pop sort of yes, but with reservations though .... the 3D pop is countered somewhat by a sort of "micro bubbling pop" going on in the foliage highlights as well as edgy highlighted twigs in the mid distance .... all on a micro scale ..... it doesn't seem to be nisen bokeh image splitting or just general soap bubbling ..... on a large scale print that would be pretty distracting ....... strange !
I get the impression this image nice though it is, has exposed a shortcoming of this lens at least at greater magnifications .... but then I do give a rat's arse about bokeh ..... 🙂

me

I do agree that the highlights at stark contrasts aren't ideally rendered in this image.

MLonlooker

Somehow this lens has piqued my interest with it's strange background bokeh in that nice old jalopy image .... given it's max aperture of only F2.8, it made me wonder if a macro lens of the same focal length would be a more versatile choice ...

just saying ....

geojone31

MLonlooker wrote
Somehow this lens has piqued my interest with it's strange background bokeh in that nice old jalopy image .... given it's max aperture of only F2.8, it made me wonder if a macro lens of the same focal length would be a more versatile choice ... subway surfers

just saying ....

Ok, I got it!